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FDA approves Bristol Myers’ Opdualag cancer immunotherapy

Bristol Myers Squibb announced that OpdualagTM, a new, first-in-class, fixed-dose combination of nivolumab and relatlimab, administered as a single intravenous infusion, was approved by the U.S. Food and Drug Administration for the treatment of adult and pediatric patients 12 years of age or older with unresectable or metastatic melanoma.

The trial met its primary endpoint, progression-free survival, and Opdualag more than doubled the median PFS when compared to nivolumab monotherapy, 10.1 months (95% Confidence Interval [CI]: 6.4 to 15.7) versus 4.6 months (95% CI: 3.4 to 5.6); (Hazard Ratio [HR] 0.75; 95% CI: 0.62 to 0.92, P=0.0055).

The Opdualag safety profile was similar to that previously reported for nivolumab. No new safety events were identified with the combination when compared to nivolumab monotherapy. Grade drug-related adverse events were 18.9% in the Opdualag arm compared to 9.7% in the nivolumab arm. Drug-related adverse events leading to discontinuation were 14.6% in the Opdualag arm compared to 6.7% in the nivolumab arm.

F. Stephen Hodi, M.D., director of the Melanoma Center and the Center for Immuno-Oncology at Dana-Farber Cancer Institute said:

Since the approval of the first immune checkpoint inhibitor more than 10 years ago, we’ve seen immunotherapy, alone and in combination, revolutionize the treatment of patients with advanced melanoma. This approval is particularly significant, as it introduces an entirely new combination of two immunotherapies that may act together to help improve anti-tumor response by targeting two different immune checkpoints — LAG-3 and PD-1.

Samit Hirawat, chief medical officer, global drug development, Bristol Myers Squibb said:

While we have made great progress in the treatment of advanced melanoma over the past decade, we are committed to expanding dual immunotherapy treatment options for these patients. Inhibiting LAG-3 with relatlimab, in a fixed-dose combination with nivolumab, represents a new treatment approach that builds on our legacy of bringing innovative immunotherapy options to patients. The approval of a new medicine that includes our third distinct checkpoint inhibitor marks an important step forward in giving patients more options beyond monotherapy treatment.

The FDA-approved dosing for adult patients and pediatric patients 12 years of age or older who weigh at least 40 kg is 480 mg nivolumab and 160 mg relatlimab administered intravenously every four weeks. The recommended dosage for pediatric patients 12 years of age or older who weigh less than 40 kg, and pediatric patients younger than 12 years of age, has not been established.

This application was approved under the FDA’s Real-Time Oncology Review (RTOR) pilot program, which aims to ensure that safe and effective treatments are available to patients as early as possible. The review was also conducted under the FDA’s Project Orbis initiative, which enabled concurrent review by the health authorities in Australia, Brazil and Switzerland, where the application remains under review.

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